.search-input{
    width: 276px;
    height: 28px;
    background-size: 276px 28px;
    background-image: url('../images/qbar_light@2x.png');
    background-repeat: no-repeat;
    display: inline-block;
}
.topic-c{
    width: 20%;
    border: none;
    resize: none;
    background-color: #f9f9f9;
    outline: none;
    font-size: 14px;
    line-height: 15px;
    padding: 4px;
    font-family: 'Helvetica Neue', 'Hiragino Sans GB', 'Microsoft Yahei', sans-serif;
    margin: 0;
    color: #767676;
    box-sizing: border-box;
}
.topic-c option{
    line-height: 15px;
}
.form-c{
    width: 100%;
    border: none;
    resize: none;
    background-color: #fff;
    outline: none;
    font-size: 14px;
    line-height: 15px;
    padding: 7px;
    font-family: 'Helvetica Neue', 'Hiragino Sans GB', 'Microsoft Yahei', sans-serif;
    margin: 0;
    color: #767676;
    box-sizing: border-box;
}
